Heya everyone!
Today, here's a new small patch to fix a couple of things and add even more quality-of-life stuff :)
Language pinning: The "language" discovered in level 4 ([spoiler]meaning the reversed alphabet of the Atbash cipher[/spoiler]) can now be used like the others from the list of completed levels, to pin it beneath the alphabet at the top of the screen.
Level 53: The algorithm and hints have been reworked a little to allow for step-by-step deciphering (instead of enforcing guess-work and brute-force). Big thanks to the players, and in particular @Usra for their help with this! :)